Igniter.



IGNITER.

APPLICATION FILED JUNE 15, 1907.

2 SHEETfii-SHEBT l.

WITNESSES ATTORNEYS No. 891,647; I PATENTED JUNE 23, 1908. W. L. WAYRYNBN.

IGNITER.

' APPLICATION FILED JUNE 15, 1907.

2 SHEETS-SHEET z.

Afro/mars WILLIAM L. WAYRYNEN,

IGNETER.

Specification of Letters Patent.

OF DOLPH, SOUTE DAKOTA.

Patented June 23, 1908,

Application filed June 15, 1907. Serial No. 379,160.

To all it may concern:

Be it known that NEN, a citizen of the United States, and

resident of Dolph, in the county of Hamlin and State of South Dakota, have invented new and Improved Igniter,

lowing is a full, clear, and

pendent not only pressure thin the cylinder.

of which will Reference is ing drawings, cation, in which once indicate corresponding parts m a figures, and in which Figure 1 .18 an end view of an engine constructed in accordance with my invention and showing the pressure-controlled operat- 2 is a section plane of the inner cylinder head; and Fig. 3 is a the engine cyling mechanism in section; Fig. through the cylinder in the surface of the longitudinal section through inder.

My improved igniter is adaptable for use in connection with either two-cycle or four-' cycle engines,

constructed in any well-known manner,

operation of the igniter being independent details of the engine. have illustrated the igniter as applied to a valveless two-cycle enof any of the structural In the drawings I gine having a ylinder 10 provided with water jacket 11 and having a p trolling the inlet port 13 an port 14, the inlet port communicating with passage 1c The igniter proper .prise a stationary electrode 15 extendln through the cylinder head and insulate ---therefrom by a suitable insulating sleeve 16.

The inner end of the electrode is rovided e spark similar projection 18 upon The latter com- 5 with a projection 17 from which t may jump'to a the movable electrode. prises an arm 19 carrying and secured to. the

said projection 1 I, WILLIAM L. Warnsof which the folexact description. This invention relates to certain improve ments in igniters for internal combustion engines, and the object of the invention is to so" construct the igniter that its operation is deupon the position of the piston within the cy inder, but also upon th The invention consists in certain features of construction and combinations of parts, all be fully set forth hereinafter and particularly pointed out in the claims. to be had to the accompanyforming a part of this specifi similar characters of refer- 11 the having the cylinder and valyl'e iston 12-conthe exhaust c ding to a compression chamber.

or spark term nals cominner end of an oscillatory in 20 also extending through the cylinder head. The pin 20 is not necessarily msu- "illustrated in Figs. 2 and 3, namely, with the spaced a short distance apart.

Mounted upon-the cylinder head or in any other suitable locality is a small cylinder 23 having a piston 24 mounted therein and having a passa e 25 leading from the interior thereof to t e interior of the main working cylinder 10, whereby the two are maintained in open communication with each other. The piston 24 is provided with a piston rod 26 extending out through the o .cylinder and moving throng a suitable guide 27. The piston rod is provided with a coil spring 28 intermediate the piston and said guide, whereby the piston is normally forcedinward toward the closed end of ,the cylinder and against the pressure of the gas from the main working cylinder. For preventing the rotation of the piston 24, the piston rod is preferably provided. with a groove within which screw 29 carried by the guide. The outer end of the piston 'rod is rovided with an operating finger 30 ivote thereto to move in a plane arallel with the cylinder head and norma y forced in one direction by the action of a small spring 31. The finger 30 lies in the same lane as the end of t e finger is adapted to engage with the'lever adjacent the end thereof, but by the lateral movement of the finger 30upon its ivot the lever may return to its normal position.

For controlling the spark by the position of the piston within the cylinder, a second oscillator pin 32 is provided, said pin extending t ou h the cylinder head and substantial para lel to the pin 20. This pin is provide with a spring 33 which tends to normally hold the pin in the position illustrated, and the inner end of t e pin is provided with a lever 34 having a adapted to engage with a cam surface 36 u on a lug 37 carried by the main working iston. At the outer end of the pin 32 there is provided a releasing lever 38 for the finger the spark termi sparking terminals or projections'lTand 18- en end of the extends a small set the lever arm 21, and

lated from the cylinder head, as the cylinder.

cam surface 35 30. This releasing lever is provided with a recess in the side thereof for the reception of the finger, and by the rotation of the pin 32 and its lever, the finger 30 is moved later- 7 ally and out of engagement with the lever 21 of the movable electrode.

In the operation of my improved igniter, the parts normally rest in the position illustrated in solid lines in the drawings, and are 10 varied from this position by variation in'the pressurein the working cylinder and by the action of the rojection 37 of the piston. After a fresh cfiarge is taken into'the cylinder, the working piston returns upon the compression stroke, the piston 24 is moved outward against the action of the spring 28, and the 'finger 30 forces the lever 21 to the position shown in dotted lines in Fig. 1, and this moves the electrode 19 to the position 20 illustrated in dotted lines in Fig. 2.. As the working piston reaches the end of the compression stroke, the cam surface 36 engages with the cam surface 35 of the lever 34 and rotates the pin 32 to bring the releasing lever 38 to the position illustrated in dotted lines in Fig. 1. This moves the finger laterally out of engagement with the arm 21, and due 1 1 to the action of the spring-22, the latter re-' turns to its normal position, but in returning 30 the inertia of the moving parts causes the electrode 19 to ass the normal position and causes the terminals 17 and 18 to contact for an instant. The contact is immediately broken by the return of the lever 19 tothe position illustrated in solid lines in Figs. 2 and 3. Upon the making and breaking of the circuit at this point a s ark is caused to jum fromone terminal to t e other, and the exp osive charge is ignited to force outward 40 the piston 12. Any suitable source of electricity may be employed and the binding posts connected to the separate parts in any manner desired. As illustrated, .the pin 15 is provided with a bindin post 39 at its 5 outer end, and the cylinder ead is provided with a binding post 40, each binding post being connected to the terminal wires from the source of electrical energy.

When my improved lgniter is employed,

tWO COI1dit1011S must prevail before the explosive charge is caused to ignite. First, the

charge must be com ressed to a sufficient extent to cause the esired movement of the lever 21, and, second, the iston must reach the desired osition to re ease the lever 21 and cause t e sparking terminals to contact; thus, no current is Wasted in a fourc cle engine should the exhaust valve fail to c ose, or for any other reason the gas is not m compressed to the desired extent in-the cylinder. Premature explosion is impossible, as during the compression stroke the sparking terminals are moved farther and farther :1 art, and-the higher the pressure the less as t e inability to ignition until the piston reaches substantially the end of its stroke and the releasing lever 38 is operated.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:'

1. In combination with the cylinder and iston of an internal combustion engine, an igniter comprising two sparking terminals, one of which is movable, a member, the operation of which is dependent upon the pressure Within the cylinder, a second member, the operation of which is dependent upon the position of the piston, and means controlled by both of said members for controlling the position of the movable terminal.

2. In combination with the cylinder and piston of an internal combustion engine, an igniter comprising a stationary electrode, and a movable electrode, an arm'for moving said movable electrode, means adapted to be operated by a variation in pressure in the working cylinder, means adapted to be operated by .the osition of the piston, and a finger operable y both of said. means and in engagement with said arm for controlling the movement of the movable electrode.

3. In combination with the cylinder and piston of an internal combustion engine, an igniter comprising a stationary electrode, a movable electrode mounted adjacent thereto,

an auxiliary cylinder in communication with.

the working cylinder, a piston mounted therein, a finger connected to said piston and adapted to move the movable electrode u on an increase in pressure in the working cyli der, and means in engagement with said fin ger and ada ted to be operated by the work-' mg piston 'or releasing the finger from engagement with the electrode.

4. In combination with the cylinder and piston of an internal combustion engine, an 1gniter|comprisin two spark terminals, one of which is mova le, means operated by an increase in pressure in the engine cylinder "for separating the terminals, and "means operated by the piston for releasing themand permitting them to come together.

5. An internal combustion engine, comprising a working cylinder, a working iston mounted therein, an auxiliary cylin er in open communication 'with the main working cylinder, an auxiliary piston mounted therein, a movable electrode, a finger operated by said auxiliary piston and adapted to move,

.the electrode in one direction upon an ini the posisaid auxiliary piston for controlling tion of the movable electrode, an means: in

engagement with said finger and adapted to be operated bytheiworkingfpiston for-releas: ing saidfinger, a i

7. An internal combustion e e,-=-inelu'd-' ing a working.eylindery afwor g-{pisltonmounted therein, a' stationary-electrode, a

movable eleetr'odaameans'operable by varie tions in the pressure in the working cylinder for operating said movable eleetrode, saii 'means inoludin a fingenimeans for'constationary electrode and a movable electrode carried by said cylinder head, an arm for opable by a variationm 'pressure within the" .working cylingler ancladapted to engage with said arm for moving-the movable electrode, said means including a igxilvoted finger, and means for releasing said ger by theaotion loffthe piston, said-jlastmentioned 'means including a membr'e'arried by the piston and a gagement with the arm.

In: testimony. whereof I have signed my.

name to this speeifieation in the presence of two subscribing witnessesr -Witnesses:fl EA.Runne -1.v MATTI Wnmmn'.

WILLIAM L WAYRYNEN."

erating said movable electrode, means mov;

so member carried-by the cylinder head and adapted to be movedby the'member carried y the piston to move thesfing'erout of en- 

